40 would be a good number to start with, unless the sandwiches are really small or the guests are big eaters.
50, typically you are going to want to plan for one sandwich per person. If the group is going to be hungry or if the sandwiches are going to be the primary food served, you might want to plan on having 75 sandwiches or maybe even 100 so everyone could have two.
About half the people won't return for seconds, while half more than likely will. So for 20 people, it would be good to have 30 sandwiches prepared. If you're the type that would rather have more than not enough, prepare 40 sandwiches.
40
30-40 calories
Generally, 2.5 grams of tea is recommended for an 8 oz cup. Using that number, you can get 40 cups from 100 grams of tea.
The temperature of hot tea is about 40° Celsius
1 tea spoon have 40 calories1 table spoon have 120 calories
If you reckon on 1/2 a pint per person - that's 20 pints which is 2.5 gallons
Siberia has 40 million people.
40 percent of 300 is 120. Therefore, 40 percent of 300 people would be 120 people.
about 40%